Cisco Systems 700 manual Configuring Remote Capi

C H A P T E R 6

Configuring Remote CAPI

This chapter provides procedures for configuring Remote Common Application Programming Interface (CAPI) support on a Cisco 700 series router.

CAPI is an application programming interface standard used to access ISDN equipment connected to Basic Rate Interfaces (BRIs) and Primary Rate Interfaces (PRIs). CAPI provides a standardized interface that allows application programs to use ISDN drivers and controllers. One application can use one or more controllers. Several applications can share one or more controllers.

CAPI provides a selection mechanism that supports applications that use different protocols at different protocol levels. CAPI also provides standardized network access by performing an abstraction from different protocol variables. All connection-related data, such as connection state, display messages, and so on, is available to the applications at any time.

The framing protocols supported by CAPI consist of High-Level Data Link Control (HDLC), HDLC inverted, bit-transparent (speech), and V.110 synchronous/asynchronous.

CAPI integrates the following data link and network layer protocols:

•Link Access Procedure on the D channel (LAPD) in accordance with Q.921 for X.25 D-channel implementation

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Point-to-Point Protocol (PPP)

ISO 8208 (X.25 DTE-DTE)

X.25 DCE, T.90NL, and T.30 (fax group 3)

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